what is efficent way to read from string in sql server 2008

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SQL-Server-2008R2

Hi all i want to read some specific data from string in sql server 2008 i need help let me know what is efficient way to read it.my string also contains that specific word and also end with new line.

Declare @string as nvarchar(max)
declare @Head as nvarchar(100)
declare @HeadDetail as nvarchar(500)
Declare @Host as nvarchar(500)
Declare @Connection as nvarchar(500)
Declare @Referer as nvarchar(500)
set @string=
'OPTIONS /Ads/PageTerms/GetTerms HTTP/1.1
Host: apps.developermedia.com
Connection: keep-alive
Cache-Control: max-age=0
Access-Control-Request-Method: POST
Origin: http://www.codeproject.com
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML. like Gecko) Chrome/38.0.2125.111 Safari/537.36
Access-Control-Request-Headers: content-type
Accept: */*
Referer: http://www.codeproject.com/Articles/25600/Triggers-SQL-Server
Accept-Encoding: gzip.deflate.sdch
Accept-Language: en-US.en;q=0.8.ru;q=0.6

'

print 'Host: apps.developermedia.com'
print 'Referer: http://www.codeproject.com/Articles/25600/Triggers-SQL-Server'

can i print data in this way from this input @string and all other necessary fields.
Any Help will be really appreciated.

Posted 25-Nov-14 2:14am

Jawad Ahmed Tanoli

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Shweta N Mishra 25-Nov-14 8:22am

do mean to extract
'Host: apps.developermedia.com'
& 'Referer: http://www.codeproject.com/Articles/25600/Triggers-SQL-Server

from given string ?

Jawad Ahmed Tanoli 25-Nov-14 8:27am

yes like host, Referer, Origin etc

Shweta N Mishra 25-Nov-14 8:32am

Is the string format is fixed, I mean that After host line connection would come ?
and after Referer like Accept-Encoding line would appear

Jawad Ahmed Tanoli 25-Nov-14 9:29am

no it may be come any where in string but each field must contains char(13) new line at the end.

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Shweta N Mishra · Accepted Answer · 2014-11-25T03:28:00

check this

SQL

Declare @string as nvarchar(max)
declare @Head as nvarchar(100)
declare @HeadDetail as nvarchar(500)
Declare @Host as nvarchar(500)
Declare @Connection as nvarchar(500)
Declare @Referer as nvarchar(500)
set @string=
'OPTIONS /Ads/PageTerms/GetTerms HTTP/1.1
Host: apps.developermedia.com
Connection: keep-alive
Cache-Control: max-age=0
Access-Control-Request-Method: POST
Origin: http://www.codeproject.com
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML. like Gecko) Chrome/38.0.2125.111 Safari/537.36
Access-Control-Request-Headers: content-type
Accept: */*
Referer: http://www.codeproject.com/Articles/25600/Triggers-SQL-Server
Accept-Encoding: gzip.deflate.sdch
Accept-Language: en-US.en;q=0.8.ru;q=0.6
 
'
declare @charindexloc int,@charindexlocNext int,@lengthOfString int

select @charindexloc=CHARINDEX('Host:',@string)
select @lengthOfString=LEN(@string)
select @charindexlocNext=CHARINDEX(CHAR(10),Substring(@string,@charindexloc,@lengthOfString))

select SUBSTRING(@string,@charindexloc,@charindexlocNext) As Host
 
select @charindexloc=CHARINDEX('Referer:',@string)
select @lengthOfString=LEN(@string)
select @charindexlocNext=CHARINDEX(CHAR(10),Substring(@string,@charindexloc,@lengthOfString))

select SUBSTRING(@string,@charindexloc,@charindexlocNext) As Referer